My dragon 'arnie' has completely gone off of crickets, I've tried him on locusts and black crickets as I was told they are slower. He won't chase them down at all, if I put a bowl of waxworms in his tank he'll run over and demolish them, he also runs towards greens. I don't feed him waxworms too often and he won't touch mealworms. Ideas on what to do? My local vets have said starve him of food and when a cricket is put in he'll have to chase it?

? Sounds a bit cruel if you ask me..is this fair?